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bathtub

Bathtub Drain Won't Hold Water for a Bath

A bathtub that slowly drains while you're trying to take a bath has a failed drain stopper mechanism. Fix the linkage or replace the stopper instead of buying a rubber plug.

Category:Bathroom
Difficulty:Easy
Time:15-20 min
Success:50%
Updated:May 22, 2026

quick_referenceQuick Answer

For Bathtub Drain Won't Hold Water for a Bath, start with "Remove the overflow plate and pull out the linkage": If you have a trip-lever on the overflow plate (the round plate below the faucet with a little lever), unscrew the two screws holding the plate. Slowly pull the plate toward you — the entire linkage assembly will come out with it. It's a brass rod with a weight or plunger on the end. You'll probably find the linkage is disconnected, bent, or the plunger rubber has disintegrated. If the linkage is intact and the plunger looks fine, the problem is at the drain end where the stopper seats. Stop DIY if the overflow plate screws are seized and the heads are stripping — you may need to drill them out and retap the holes. This is listed as a easy recovery and usually takes about 15-20 min.

verifiedGuide Snapshot

Repair areaBathroom
Estimated time15-20 min
DifficultyEasy
Stop conditions3

Last updated May 22, 2026. Review the stop conditions before continuing.

account_treeRecovery State

DeviceBathtub
Current stateDrain Wont Seal
Specific statePop Up Stopper Linkage Failure
Failed stepBathtub Drain Seal
Likely failure typeWorn Part
DIY boundaryDIY recovery first
paymentsCost decision

help1. Understand the Problem

Bathtub drains use one of three stopper types: a pop-up stopper controlled by a lever on the overflow plate, a push-pull stopper in the drain itself, or a rubber stopper on a chain (old school). When the tub won't hold water, the stopper isn't sealing against the drain opening. On pop-ups, the linkage has slipped or disconnected. On push-pulls, the rubber seal has hardened and won't conform to the seat. Temporary rubber plugs work, but they're a band-aid on a simple mechanical fix.

build_circle2. Try This First

Best First Step

Remove the overflow plate and pull out the linkage

If you have a trip-lever on the overflow plate (the round plate below the faucet with a little lever), unscrew the two screws holding the plate. Slowly pull the plate toward you — the entire linkage assembly will come out with it. It's a brass rod with a weight or plunger on the end. You'll probably find the linkage is disconnected, bent, or the plunger rubber has disintegrated. If the linkage is intact and the plunger looks fine, the problem is at the drain end where the stopper seats.

visibility3. Visual Guidance

See what's happening and how to try the first recovery step.

1
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Adjust or replace the pop-up linkageThe linkage rod has a threaded adjustment at the top where it connects to the trip lever. If the stopper isn't dropping low enough, shorten the linkage by threading the rod further into the brass clevis. If the plunger rubber is hard, cracked, or gone, replace the whole linkage assembly — they're universal and cost $12-20 at any hardware store. Make sure the new assembly matches your drain type: pop-up or plunger style.
2
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Clean the drain seat where the stopper landsThe stopper needs a clean surface to seal against. Reach into the drain with a paper towel and wipe around the seat where the stopper contacts the drain body. If it feels rough, gritty, or you pull out hair and soap scum, that's why the seal is failing. Clean the seat with a scrub brush and CLR or vinegar. A smooth clean seat will seal even with a marginal stopper.
3
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Test and fine-tune the adjustmentReinstall the linkage, screw the overflow plate back on, and fill the tub a few inches. Mark the water level with a piece of tape. Check again in 15 minutes. If the water level hasn't moved, you're done. If it's still dropping, the stopper at the drain end may be misaligned or worn. Remove the two screws holding the drain strainer, pull the pop-up stopper out, and replace it — a new pop-up stopper and strainer assembly is about $15.

autorenew4. If That Doesn't Work

Try the next recovery options.

swap_horiz
Replace a hardened push-pull stopperFor push-pull stoppers, the rubber O-ring seal on the stopper body hardens over time. Unscrew the stopper from the drain (it just unscrews), take it to the store, and match the diameter and thread. A new push-pull stopper is $8-12.
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handyman
Use a silicone drain cover as a temporary fixIf you need a bath tonight and can't get parts, a flat silicone drain cover or even a small square of plastic wrap weighted down with a wet washcloth will seal the drain temporarily. Not elegant, but it works in a pinch.
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Frequently Asked Questions

Can I adjust the bathtub stopper without removing the overflow plate?expand_more
Sometimes. If you have a threaded adjustment on the linkage, removing the overflow plate is the only way to reach it. The whole process takes 10 minutes and requires only a screwdriver. Don't try to adjust anything from the drain side — everything is controlled from the overflow.
Why does my bathtub hold water for 20 minutes then slowly drain?expand_more
The stopper seal is marginal — it holds against slow seepage for a while, but eventually enough water leaks past to create a siphon effect that drains the rest. Clean the seat thoroughly and replace the rubber seal to get a positive seal.
Are bathtub drain stoppers universal?expand_more
Pop-up linkages are fairly universal — one kit fits most tubs. But push-pull and lift-and-turn stoppers are brand and size specific. Bring the old one to the store to match it.

warning5. Stop DIY If

Don't continue if any of these apply.

reportThe overflow plate screws are seized and the heads are stripping — you may need to drill them out and retap the holes.
reportWater is still draining after replacing the linkage and stopper — the drain seat itself may be cracked or the pipe below has a leak.
reportThe tub drain pipe is cast iron and heavily corroded — working on old cast iron drains risks cracking the pipe.
Still stuck?Get personalized help with AI Recovery.

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This page provides general DIY guidance.
If you're unsure, it's always best to consult a professional.